public class Animal {
    public String name;
    public int age;
    public Animal(String name, int age) {
        this.name = name;
        this.age = age;
    }
    public void eat() {
        System.out.println(name+"正在吃……");
    }
}
class Dog extends Animal {
    public String color;
    public Dog(String name, int age,String color) {
        super(name, age);
        this.color = color;
    }
    @Override
    public void eat() {
        System.out.println("正在吃史");
    }
}
